package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {

    @Autowired
    private MinioProperties properties;
    @Autowired
    private MinioClient client;


    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {

            boolean bucketExists =
                    client.bucketExists(BucketExistsArgs.builder().bucket(properties.getBucketName()).build());//判断是否存在
            if (!bucketExists) {//创建桶
                client.makeBucket(MakeBucketArgs.builder().bucket(properties.getBucketName()).build());
                client.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(properties.getBucketName()).config(createBucketPolicyConfig(properties.getBucketName())).build());
            }
            String filename = new
                    SimpleDateFormat("yyyyMMdd").format(new Date()) + "/" +
                    UUID.randomUUID() + "-" + file.getOriginalFilename();
            client.putObject(PutObjectArgs.builder().
                    bucket(properties.getBucketName()).
                    object(filename).
                    stream(file.getInputStream(), file.getSize(), -1).
                    contentType(file.getContentType()).build());
            return String.join("/", properties.getEndpoint(),
                    properties.getBucketName(), filename);

    }

//    @Override
//    public String upload(MultipartFile file) throws
//            ServerException, InsufficientDataException,
//            ErrorResponseException, IOException, NoSuchAlgorithmException,
//            InvalidKeyException, InvalidResponseException,
//            XmlParserException, InternalException{
//        boolean bucketExists = minioClient.bucketExists(
//                BucketExistsArgs.builder()
//                        .bucket(properties.getBucketName())
//                        .build());
//        if (!bucketExists) {
//            minioClient.makeBucket(
//                    MakeBucketArgs.builder()
//                            .bucket(properties.getBucketName())
//                            .build());
//            minioClient.setBucketPolicy(
//                    SetBucketPolicyArgs.builder()
//                            .bucket(properties.getBucketName())
//                            .config(createBucketPolicyConfig(properties.getBucketName()))
//                            .build());
//        }
//        String filename = new
//                SimpleDateFormat("yyyyMMdd").format(new Date()) +
//                "/" + UUID.randomUUID() + "-" +
//                file.getOriginalFilename();
//        minioClient.putObject(
//                PutObjectArgs.builder()
//                        .bucket(properties.getBucketName())
//                        .stream(file.getInputStream(),
//                                file.getSize(), -1)
//                        .object(filename)
//                        .contentType(file.getContentType())
//                        .build());
//        return
//                String.join("/",properties.getEndpoint(),properties.getBucketName(),filename);
//    }

    private String createBucketPolicyConfig(String bucketName) {
        return """
                {
                "Statement" : [ {
                "Action" : "s3:GetObject",
                "Effect" : "Allow",
                "Principal" : "*",
                "Resource" : "arn:aws:s3:::%s/*"
                } ],
                "Version" : "2012-10-17"
                }
                """.formatted(bucketName);
    }
}
